Detection of bixin, lycopene, canthaxanthin, and beta-apo-8'-carotenal in products derived from red pepper
Mínguez-Mosquera, M.I.; Hornero-Méndez, D.; Garrido-Fernández, J.
Journal - Association of Official Analytical Chemists 78(2): 491-496
1995
ISSN/ISBN: 0004-5756 PMID: 7756865 Document Number: 451961
An analytical method using either thin layer or liquid chromatography is proposed for the detection of 4 pigments (bixin, lycopene, canthaxanthin and beta-apo-8'-carotenal) that can be used fraudulently to intensify the natural color of products derived from red pepper (oleoresins, paprika, paprika paste, etc.). Similarly, the addition of other colorant natural products containing some of these pigments as major pigments (such as tomato for lycopene and Bixa orellana seeds for bixin) can be detected. The method proposed can also be used to control the aforementioned pigments in their natural sources as well as in food products.